OpenAI is developing a new subscription option called ChatGPT Go, offering a cheaper alternative to its existing paid tiers, as spotted by Tibor Blaho. At the same time, it has begun testing design updates across its mobile and web platforms, including interface changes that let users pin chats, mark favorites, and personalise color themes. These updates, still unannounced, reflect a series of silent changes rolling out ahead of a possible GPT-5 launch.

The new Go plan is expected to cost less than the current $20 Plus tier. Internally, pricing discussions place it somewhere between $10 and $15. This tier would likely give users consistent access to modern models like o3, but without premium functions like agents, advanced customisation, or developer features included in higher subscriptions.

OpenAI’s current structure includes a $200 Pro tier with broader access limits, early tool previews, and advanced support. The Go option would sit below Plus and appeal to users with more casual or infrequent AI needs, including those who want stable model usage but don’t need enterprise-grade tools.

Alongside pricing changes, OpenAI has pushed interface experiments to selected accounts on both web and mobile. The most prominent test involves a redesigned sidebar that introduces the ability to pin chats, letting users keep key conversations visible regardless of recency. A new “Favorites” section is also being tested, allowing quicker access to saved threads.

These layout tools, though still hidden for many, signal a shift toward more persistent workspace control within ChatGPT. There is no official toggle for enabling the changes, suggesting they are being remotely activated on a per-user basis while OpenAI refines the rollout.

Customization features have also started appearing in ChatGPT’s Android beta app. Version 1.2025.210 includes an expanded color system for chat themes. Basic options, such as green, yellow, pink, blue, and orange, are available to all users. Two additional themes come with account-based restrictions. Purple is available to Plus, Pro, Team, and Enterprise users. The black theme is currently limited to Pro accounts only. These distinctions also appear in the ChatGPT web interface through the “Chat Theme” experiment, though availability remains inconsistent.

All three changes, pricing, personalization, and persistent sidebar control, are emerging within a short window and appear to be part of a larger adjustment cycle. OpenAI is expected to unveil GPT-5 shortly, and these incremental changes suggest preparations are underway to align the platform’s interface and plan structure with upcoming model capabilities.

Whether ChatGPT Go launches broadly or stays in limited testing, the current activity reflects OpenAI’s ongoing efforts to scale the product across more usage levels while reshaping how users navigate, save, and organise their conversations.

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